DTC P0134: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1): DTC Detecting Condition

DTC P0134 DETECTING CONDITION TABLE

Item		Detecting Condition	Possible Cause
DTC Strategy		Monitor signal voltage	Poor connection Open in harness HO2S (B1/S1) ECM
Enable Conditions		Battery voltage ≥ 10V Engine running ≥ 60 sec Engine warm-up state No disable faults
Threshold value	Case 1	1.2V ≤ Voltage of HO2S ≤ 3.9V (at pumping current ON)
Threshold value	Case 2	0.415V ≤ Voltage of HO2S ≤ 0.515V (at pumping current OFF)
Diagnosis Time		Continuous (more than 76.5 sec. failure for every 90 sec. test)
MIL On Condition		2 Driving Cycles